Fixes #4: Ansible 2.6.0 requires docker instead of docker-py.

Author: geerlingguy

.travis.yml

@@ -10,7 +10,7 @@ env:
 
 install:
   # Install Ansible.
-  - pip install ansible docker-py
+  - pip install ansible docker
 
   # Install role dependencies.
   - ansible-galaxy install -r requirements.yml

README.md

@@ -90,7 +90,7 @@ Then, make sure Docker is running, and run the playbook to build the container:
 
 (Substitute whatever supported PHP version you desire in the vars path) Once the image is built, you can run `docker images` to see the `php-apache` image that was generated.
 
-> Note: If you get an error like `Failed to import docker-py`, run `pip install docker-py`.
+> Note: If you get an error like `Failed to import docker`, run `pip install docker`.
 
 ### Push the image to Docker Hub